Finding the Fourth Proportional to 11,107, 16,596.83 and 8,459.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,107 : 16,596.83 = 8,459.80 : x
2. Step 2: Convert to fraction form
   11,107/16,596.83 = 8,459.80/x
3. Step 3: Cross multiply
   11,107x = 16,596.83 × 8,459.80
4. Step 4: Simplify right side
   11,107x = 140,405,862.43
5. Step 5: Solve for x
   x = 140,405,862.43/11,107
6. Step 6: Final answer
   x = 12,641.20